Question

Accuracy of bridge circuit depends on _________

(a) component values

(b) null detector

(c) voltage source

(d) current source

I have been asked this question by my school principal while I was bunking the class.

My question is taken from Advantages of Bridge Circuits in section Measurement of Resistance of Electrical Measurements

Answer 1

Right answer is (a) component values

Best explanation: The accuracy of the measurement of a bridge circuit depends on the values of the components used in it. Voltage source supplies dc bias to the circuit while the detector is used for balance condition.